(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

SISTEMA DE CONTROLE DE VÁLVULA

Prazo de SigiloInvention Patent

Application data

Number

PI8903146

Type

Invention Patent

Filing

06/27/1989

Publication

02/06/1990

Progress at the INPI

  1. Filing06/27/89
  2. Publication02/06/90
  3. Examination04/07/92
  4. Allowance08/24/93
  5. Grant04/26/94
  6. Expired12/22/09

The letters patent expired on 12/22/2009: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Deere & Company

US

See this company's full portfolio

Inventors

M. B. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 38 21 700.7 · 06/28/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/29/1989

RPI 984

Carta-patente expirada

#21.1

Patente extinta em 27/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

04/26/1994

RPI 1221

Deferimento

#9.1

08/24/1993

RPI 1186

Solicitação de exame técnico

#4.1

04/07/1992

RPI 1114

Publicação do pedido de patente

#3.1

02/06/1990

RPI 1005

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.